From 9308fc88e7f28b38ac63622291a3ec853a72c1c8 Mon Sep 17 00:00:00 2001 From: Daniel Jacobowitz Date: Tue, 30 May 2006 15:57:09 +0000 Subject: gdb/ * Makefile.in (arm-linux-nat.o): Update dependencies. * arm-linux-nat.c: Include "gdb_proc_service.h". (PTRACE_GET_THREAD_AREA): Define. (ps_get_thread_area): New function. gdb/gdbserver/ * Makefile.in (linux-arm-low.o): Update dependencies. * linux-arm-low.c: Include "../gdb_proc_service.h". (PTRACE_GET_THREAD_AREA): Define. (ps_get_thread_area): New function. --- gdb/gdbserver/linux-arm-low.c | 28 +++++++++++++++++++++++++++- 1 file changed, 27 insertions(+), 1 deletion(-) (limited to 'gdb/gdbserver/linux-arm-low.c') diff --git a/gdb/gdbserver/linux-arm-low.c b/gdb/gdbserver/linux-arm-low.c index b2c314f..c01f97a 100644 --- a/gdb/gdbserver/linux-arm-low.c +++ b/gdb/gdbserver/linux-arm-low.c @@ -1,5 +1,6 @@ /* GNU/Linux/ARM specific low level interface, for the remote server for GDB. - Copyright (C) 1995, 1996, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005 + Copyright (C) 1995, 1996, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, + 2006 Free Software Foundation, Inc. This file is part of GDB. @@ -22,6 +23,14 @@ #include "server.h" #include "linux-low.h" +#include + +#include "gdb_proc_service.h" + +#ifndef PTRACE_GET_THREAD_AREA +#define PTRACE_GET_THREAD_AREA 22 +#endif + #ifdef HAVE_SYS_REG_H #include #endif @@ -105,6 +114,23 @@ arm_reinsert_addr () return pc; } +/* Fetch the thread-local storage pointer for libthread_db. */ + +ps_err_e +ps_get_thread_area (const struct ps_prochandle *ph, + lwpid_t lwpid, int idx, void **base) +{ + if (ptrace (PTRACE_GET_THREAD_AREA, lwpid, NULL, base) != 0) + return PS_ERR; + + /* IDX is the bias from the thread pointer to the beginning of the + thread descriptor. It has to be subtracted due to implementation + quirks in libthread_db. */ + *base = (void *) ((char *)*base - idx); + + return PS_OK; +} + struct linux_target_ops the_low_target = { arm_num_regs, arm_regmap, -- cgit v1.1